Hands-On Tutorials

In this challenge, you will learn how to configure network services to start automatically at system boot.

In this lab, you will learn the fundamentals of vulnerability scanning using Nmap. You'll install Nmap, perform a port scan on your local machine, and analyze the results to identify potential security weaknesses.

In this lab, you will learn the fundamental principles of digital forensics, focusing on evidence acquisition using the `dd` command and ensuring data integrity with cryptographic hashes.

In this lab, you will learn the fundamentals of securing remote access to a Linux system using SSH. You will gain hands-on experience with key-based authentication, securely transferring files with `scp`, and creating SSH tunnels for port forwarding with `ssh -L`.

In this lab, you will gain hands-on experience with the CIA Triad (Confidentiality, Integrity, Availability) in a Linux environment. You'll learn to configure file permissions with `chmod`, verify file integrity using MD5/SHA256 hashes, and simulate service monitoring to ensure availability.

In this lab, you will learn the importance of input validation and code integrity by creating a simple script, simulating a command injection attack, implementing sanitization, and verifying the script's integrity with hashing.

In this lab, you will learn to perform and verify IPv6 DNS lookups on a Linux system. You will use command-line utilities like dig, nslookup, and ping6 to query for AAAA records, inspect DNS server configurations, and test IPv6 network connectivity, ensuring a full cycle of resolution.

LabEx provides an Online OpenCode Playground, an agentic AI coding environment designed for a command-line-oriented workflow, allowing you to plan, implement, and refactor code autonomously.

In this lab, you will learn how to implement secure network monitoring on a Linux system using SNMPv3. You will configure the SNMP agent (snmpd) to enforce strong authentication and encryption, create a secure user, and use snmpwalk to perform secure queries against your configured agent.

In this lab, you will learn to use hashing and GnuPG (GPG) to ensure data integrity and authenticity. You will practice creating digital signatures and encrypting files on a Linux system.

In this lab, you will learn how to configure an IPv4-to-IPv6 6to4 tunnel in a Linux environment. This hands-on exercise guides you through creating a SIT tunnel interface, assigning a 6to4-formatted IPv6 address, adding a default route, and testing IPv6 connectivity over an existing IPv4 network.

In this lab, you will set up a local authoritative DNS server on Linux using `bind9`. You'll install `bind9`, configure global options, define forward and reverse lookup zones, and validate the configuration. Finally, you will test DNS resolution with the `dig` utility.

In this lab, you will learn how to configure Virtual LAN (VLAN) interfaces on a Linux system using the ip command. You will gain hands-on experience with creating logically separate networks on a single physical interface, a fundamental skill for network administration and segmentation.

In this lab, you will enhance Linux security by implementing robust password policies. You'll configure complexity and aging rules, enforce them for new users, and monitor authentication logs to detect suspicious activities like repeated failed login attempts, a sign of brute-force attacks.

In this lab, you will learn how to establish a basic security baseline for user accounts on a Linux system, verify compliance, and set up auditd for monitoring critical configuration files.

In this lab, you will learn fundamental techniques for identifying potential malware indicators on a Linux system. You will use standard command-line utilities to investigate suspicious process activity, detect unexpected file modifications, and analyze system logs for anomalous entries.

In this lab, you will learn to configure and verify IPv6 addresses on a Linux system. Using the ip and ping6 commands, you'll discover link-local addresses, assign a static global unicast address, and test network connectivity to ensure your IPv6 setup is functioning correctly.

In this lab, you will secure an Nginx web server on Linux by implementing HTTPS with a self-signed certificate. You will install Nginx, use OpenSSL to generate a certificate, configure Nginx for HTTPS, and then test the secure connection using command-line tools like curl and openssl.